Assuming this is the system in question, it says near the bottom of that page that it supports "Real-time Data Streaming to 3rd Party Software". That's what you'll want to use, but I'm not seeing anything more on that page indicating how exactly it's used. There's a support site walled off to anyone who isn't a customer. I suggest you contact them for details.
Most likely they have some sort of interface using a DLL or an ActiveX object that you can use with LabVIEW, based on other 3rd party software with similar functionality that I've used. Do you already have the hardware/software in question?
I did help a customer here in the Netherlands with a project but that is about 15 years ago. The programming was done in LabWindows/CVI though. The camera system in question had a DLL interface that could be called. I don't have any of that software anymore but a quick search showed up this document describing an API.
Here they talk about Optotrak Certus which I assume is a more modern system and it mentions: